4.2 bell housing for THM400 trans

Classifieds
1

Just contemplating swapping the BW66 for a THM400, in the thoughts it’d be a less expensive, more serviceable option.

Any words of advice appreciated!

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2

I think only the DS 420 had the 400 behind the six, so that’s a rare adapter.

BW is an American trans, parts should not be an issue?

Rob

3

I’d go with something more modern, personally.

If you wanna stay with the older stuff, go with the THM350. IMO.

Less parasitic, smaller, still plenty tough

Cheers
DD

4

Fair enough!

How available are bells/kits for a 350?

What more modern–not computer controlled–trans would you recommend?

I have a line on a “good” BW66 in California.

5

Also looking here.

http://brokenkitty.com/qb/xj6qb.htm

Looks like a MUCH better solution, than rebuilding the BW66.

6

I have two BW66s you may have, one supposedly rebuilt, but I think you would be far better off with the GM overdrive conversion. John recommends the 700R4, which is what I’m trying to put in a Mk10 (probably the 1st one), but my transmission specialist recommends the 4L60, which is a later version without the hassle of a manual cable. You simply buy an electronic control box for the kick-down.

7

Those are the options that look the best: given I have to remove the body, to swap out the gearbox, I’d like to do this once.

If the BW66 was local… maybe.